Test the extremes with the CITIZEN¨ Promaster Tough collection, now featuring a chronograph and 12/24-hour time. Living up to its name, this timepiece features a shock resistant and anti-magnetic movement. Shown in a stainless steel case and bracelet coated in CITIZEN¨'s Proprietary Surface Hardening Technology (Duratect), making it harder and more scratch resistant than stainless steel. Other features include an anti-reflective sapphire crystal, and luminous hands and markers. Featuring our Eco-Drive technology Ð powered by light, any light. Never needs a battery.